r1c4:
r2c4:
r3c4:
r4c4:
r5c4:
r6c4:
r7c4:
r8c4:
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b. Clear the graph by deleting all of the points in the table above. Then create scatterplots by adding points in the table with the each of the following associations. For each one, make a sketch of your graph and record the value of r. • Strong positive linear association • Weak positive linear association • Strong negative linear association • No linear association (random scatter)
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c. Use just five points to make a strong negative linear association (say r < –0.95). In the table, alter one of the points several times to observe the effect on the slope and correlation coefficient. Can you make the slope positive by moving just one point?
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